2,195 Answered Questions for the topic Pre Calculus

01/08/20

question of math
What are the roots of f(x) = x4 – 16? 2,2,2i,2i –2, 2, –2i, 2i –2,–2,2,2 2i, 2i, –2i, –2i
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01/08/20

pre math question
The perimeter of a triangle is 26 inches. then two equations can be written as z = 2x and y = x + 2. x = 2z and x = y + 2. x = 2z and y = x + 2.
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01/08/20

calculus question
The perimeter of a triangle is 26 inches. If the longest side is twice as long as the shortest side, and the third side is 2 inches longer than the shortest side. Which algebraic equation would... more
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01/08/20

PreCalculus question
Use the Binomial Theorem to find the coefficient of the fifth term: (2x + 1)^7a. C(7,3)b. C(7,4)c. C(6,5)c. C(7,5)
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Pre Calculus

01/08/20

Find all points with coordinates of the form (a, a) that are a distance 7 from P(−5, 2).
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01/08/20

Precalculus question
Write f(x) = x3 + 25x in factored form. f(x) =a. (x+25i)(x+1)(x–1)b.(x+25)(x+i)(x–i)c. x(x+5i)(x–5i)d. x(x+5i)(x–5i)
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01/08/20

Precalculus Question
Find a polynomial function with real coefficients that has 1 and 4i as it roots.a. x3+x2+16x + 16b. x3–x2–16x – 16c. x3+x2+16x + 16d. x3–x2–16x + 16
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Pre Calculus

01/08/20

Find coterminal angles in both degrees and radians
What is the negative and positive coterminal of 3pi
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01/04/20

Precalc question
An isosceles triangle has sides of length x, x and y. In addition, assume the triangle has perimeter 12.(a) Find the rule for a function that computes the area of the triangle as a function of x.... more
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Pre Calculus Math Calculus Ap Calculus

01/04/20

Please help: calculus prob
The graph of the derivative, f '(x) is shown below. On what interval is the graph of f (x) concave up?Option: Concave up on (-∞, -1) Concave up on (-∞, -∞) Concave up on (-1, ∞) Concave up on (-6,... more
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Pre Calculus Math Calculus Ap Calculus

01/04/20

Please help: calculus prob
Use the graph below to evaluate  :Choices: 0 2 3 4
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Pre Calculus Math Calculus Geometry

12/29/19

(Please help!!) The Nearsighted Cow Problem: A Calculus Classic
A rectangular billboard 9 feet in height stands in a field so that its bottom is 12 feet above the ground. A nearsighted cow with eye level at 4 feet above the ground stands x feet from the... more
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Pre Calculus Math Calculus Precalculus

12/28/19

A fence 3 feet tall runs parallel to a tall building at a distance of 4 feet from the building...
A fence 3 feet tall runs parallel to a tall building at a distance of 4 feet from the building. We want to find the the length of the shortest ladder that will reach from the ground over the fence... more
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Pre Calculus Math Precalculus

12/19/19

Express f(x)=2^x as the composition of two elementary functions

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12/17/19

Precalc question
The populations of termites and spiders in a certain house are growing exponentially. The house contains 100 termites the day you move in. After 4 days, the house contains 200 termites. Three days... more
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12/14/19

precalc question
A cancerous cell lacks normal biological growth regulation and can divide continuously. Suppose a single mouse skin cell is cancerous and its mitotic cell cycle (the time for the cell to divide... more
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12/13/19

precalc question
The cities of Abnarca and Bonipto have populations that are growing exponentially. In 1980, Abnarca had a population of 25,000 people. In 1990, its population was 29,000. Bonipto had a population... more
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Pre Calculus

12/13/19

Area of a windshield wiper

The windshield of a car has a total length of arm and blade of 11 ​inches, and rotates back and forth through an angle of 93degrees°. What is the area of the portion of the windshield cleaned by... more
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Pre Calculus Calculus Precalculus Calc

12/13/19

I need to find the polynomial function of degree 3.
I need to find the polynomial function of degree 3. (3,-3) is the point provided and the zeros are 4 and 6.
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12/12/19

Precalc question
In 1987, the population of Mexico was estimated at 82 million people, with an annual growth rate of 2.5%. The 1987 population of the United States was estimated at 244 million with an annual growth... more
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12/12/19

precalc question
A ship embarked on a long voyage. At the start of the voyage, there were 500 ants in the cargo hold of the ship. One week into the voyage, there were 800 ants. Suppose the population of ants is an... more
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Pre Calculus Precalculus

12/12/19

Using any number between 1 and 9, fill in the boxes to create a true statement. You may only use a number once.
a= < , > b=< , > c=< , >where a+b=__*c
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12/12/19

Precalc question
Your Grandfather purchased a house for $55,000 in 1952 and it has increased in value according to a function y = v(x), where x is the number of years owned. These questions probe the future value... more
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12/12/19

Precalc question
As light from the surface penetrates water, its intensity is diminished. In the clear waters of the Caribbean, the intensity is decreased by 15 percent for every 3 meters of depth. Thus, the... more
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12/12/19

Precalc question
A ship embarked on a long voyage. At the start of the voyage, there were 500 ants in the cargo hold of the ship. One week into the voyage, there were 800 ants. Suppose the population of ants is an... more
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Expert Answers •1

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